package com.itheima.reggie.contreller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.DishDto;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Dish;
import com.itheima.reggie.entity.DishFlavor;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.DishFlavorService;
import com.itheima.reggie.service.DishService;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.Set;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

@RestController
@RequestMapping("/dish")
public class DishController {
    @Autowired
    private DishFlavorService dishFlavorService;
    @Autowired
    private DishService dishService;
    @Autowired
    private CategoryService categoryService;
    @Autowired
    private RedisTemplate redisTemplate;

    @PostMapping
    public R<String> save (@RequestBody  DishDto dishDto){

        dishService.saveWithFlavor(dishDto);

        String key="dish_"+dishDto.getCategoryId()+"_1";
        redisTemplate.delete(key);
        return R.success("新增菜品成功");
    }

    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name){

        Page<Dish> pageInfo=new Page<>(page,pageSize);
        Page<DishDto> dishDtoPage=new Page<>(page,pageSize);

        LambdaQueryWrapper<Dish> queryWrapper=new LambdaQueryWrapper<>();
        queryWrapper.like(name!=null, Dish::getName,name);
        queryWrapper.orderByDesc(Dish::getUpdateTime);

        dishService.page(pageInfo,queryWrapper);

        BeanUtils.copyProperties(pageInfo,dishDtoPage,"records");

        List<Dish> recorde=pageInfo.getRecords();


        List<DishDto> list=recorde.stream().map((item)->{
            DishDto dishDto=new DishDto();
            BeanUtils.copyProperties(item,dishDto);

            Long categoryId= item.getCategoryId();

            Category category=categoryService.getById(categoryId);
            if(category!=null){
                String categoryName = category.getName();
                dishDto.setCategoryName(categoryName);

            }
            return dishDto;
        }).collect( Collectors.toList());

        dishDtoPage.setRecords(list);

        return R.success(dishDtoPage);
    }

    @GetMapping("/{id}")
    public R<DishDto> get(@PathVariable  Long id){

        DishDto dishDto=dishService.getByIdWithFlavor(id);

        return R.success(dishDto);


    }

    @PutMapping
    public R<String> update (@RequestBody  DishDto dishDto){

        dishService.updateWithFlavor(dishDto);
       // Set keys=redisTemplate.keys("dish_*");
       // redisTemplate.delete(keys);

        String key="dish_"+dishDto.getCategoryId()+"_1";
        redisTemplate.delete(key);

        return R.success("修改菜品成功");
    }

    @GetMapping("/list")
    public R<List<DishDto>> list(Dish dish){

        List<DishDto> dishDtoList=null;
        String key="dish_"+dish.getCategoryId()+"_"+dish.getStatus();

        dishDtoList=(List<DishDto>) redisTemplate.opsForValue().get(key);

        if(dishDtoList!=null){
            return R.success(dishDtoList);
        }
        LambdaQueryWrapper<Dish> queryWrapper =new LambdaQueryWrapper<>();
        queryWrapper.eq(dish.getCategoryId()!=null,Dish::getCategoryId,dish.getCategoryId());
        queryWrapper.orderByAsc(Dish::getSort).orderByDesc(Dish::getUpdateTime);
        queryWrapper.eq(Dish::getStatus,1);
        List<Dish> list = dishService.list(queryWrapper);

         dishDtoList=list.stream().map((item)->{
            DishDto dishDto=new DishDto();
            BeanUtils.copyProperties(item,dishDto);
            Long categoryId= item.getCategoryId();;
            Category category=categoryService.getById(categoryId);
            if(category!=null){
                String categoryName=category.getName();
                dishDto.setCategoryName(categoryName);
            }

            Long dishId=item.getId();
            LambdaQueryWrapper<DishFlavor> lambdaQueryWrapper=new LambdaQueryWrapper<>();
            lambdaQueryWrapper.eq(DishFlavor::getDishId,dishId);

           List<DishFlavor> dishFlavorList= dishFlavorService.list(lambdaQueryWrapper);
            dishDto.setFlavors(dishFlavorList);

           return dishDto;
        }).collect(Collectors.toList());

        redisTemplate.opsForValue().set(key,dishDtoList,60, TimeUnit.MINUTES);

        return R.success(dishDtoList);
    }



}
